package com.hua.state;

import java.text.SimpleDateFormat;
import java.util.Date;

//模拟倒计时
public class TestSleep2 {

    public static void main(String[] args) {
        try {
            tenDown();
        } catch (InterruptedException e) {
            e.printStackTrace();
        }



        while (true){
            Date startTime = new Date(System.currentTimeMillis());//获取系统当前时间
            try {

                Thread.sleep(1000);
                System.out.println(new SimpleDateFormat("HH:mm:ss").format(startTime));
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }

    }
    //打印当前系统时间





    public static void tenDown() throws InterruptedException{
        int num = 10;
        while (true){
            Thread.sleep(1000);
            System.out.println(num--);
            if (num<=0){
                break;
            }
        }



    }
}
